.nav{position: relative;z-index: 15;}
.article.col_news{width: 100%;}
.col_news .news_list .news{
    float: left;
    width: 23%;
    margin: 15px 1%;
}
.col_news .news_list .news_imgs{
    height: 0;
    overflow: hidden;
    padding-top: 140%;
    position: relative;
    background-color: #e5e5e5;
    margin-bottom: 10px;
}
.col_news .news_list .news_imgs img{
    position: absolute;
    z-index: 10;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: 0.4s;
}
.col_news .news_list .news_imgs a img:hover{
    transform: scale(1.05);
}
.col_news .news_list .news_title{
    text-align: center;
    width: 100%;
    margin-right: 0;
    font-size: 18px;
    color: #333;
}
.col_news .news_list .news_title a{color: #333;}
@media screen and (max-width: 767px){
    .col_news .news_list .news{
        width: 31.3%;
    }
}
@media screen and (max-width: 479px){
    .col_news .news_list .news{
        width: 48%;
    }
}